There are two things I never go cheap on that is taps and chisels! I like taps and dies made by Hanson. They are strong and hold a edge well. I would buy just the sizes you are going to use most often at first, then expand as you need them this will spread the cost out over time. So it won't seem so bad. As for lube, I like sticky oil for taps and dies. I would buy cutting oil at a place that treads pipe or in a pinch I'll use chainsaw bar oil. Remember to back off the tap or die as you are cutting and clean the chips off, this will save you lots of broken taps. Also there are different styles of taps( first cut, second cut, bottom and gun..ect) know what you need when you order them. Hope this helped. TC